2-(Tetrahydrofurfuryloxy)tetrahydropyran is the tetrahydropyranyl (THP) ether derivative of tetrahydrofurfuryl alcohol, serving primarily as a protected intermediate in organic synthesis. The THP protecting group shields the hydroxyl functionality, allowing selective manipulation of other molecular sites during multi-step reactions. It is utilized in the production of pharmaceuticals, agrochemicals, and other specialty chemicals, as well as in research and development for novel compounds and materials.